Measurement of the charm fragmentation function in D* photoproduction at HERA

S. Chekanov; M. Derrick; S. Magill; B. Musgrave; D. Nicholass; J. Repond; R. Yoshida; M. C. K. Mattingly; P. Antonioli; G. Bari; L. Bellagamba; D. Boscherini; A. Bruni; G. Bruni; F. Cindolo; M. Corradi; G. Iacobucci; A. Margotti; R. Nania; A. Polini; S. Antonelli; M. Basile; M. Bindi; L. Cifarelli; A. Contin; S. De Pasquale; G. Sartorelli; A. Zichichi; D. Bartsch; I. Brock; H. Hartmann; E. Hilger; H. -P. Jakob; M. Juengst; A. E. Nuncio-Quiroz; U. Samson; V. Schoenberg; R. Shehzadi; M. Wlasenko; N. H. Brook; G. P. Heath; M. Kaur; P. Kaur; I. Singh; M. Capua; S. Fazio; A. Mastroberardino; M. Schioppa; G. Susinno; A. Pellegrino; ZEUS Collaboration

doi:10.1088/1126-6708/2009/04/082

Measurement of the charm fragmentation function in D* photoproduction at HERA

S. Chekanov^*, M. Derrick, S. Magill, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, M. C. K. Mattingly, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, G. Iacobucci, A. Margotti, R. Nania, A. PoliniS. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, I. Brock, H. Hartmann, E. Hilger, H. -P. Jakob, M. Juengst, A. E. Nuncio-Quiroz, U. Samson, V. Schoenberg, R. Shehzadi, M. Wlasenko, N. H. Brook, G. P. Heath, M. Kaur, P. Kaur, I. Singh, M. Capua, S. Fazio, A. Mastroberardino, M. Schioppa, G. Susinno, A. Pellegrino, ZEUS Collaboration

^*Corresponding author for this work

Precision Frontier

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Abstract

The charm fragmentation function has been measured in D* photoproduction with the ZEUS detector at HERA using an integrated luminosity of 120 pb(-1). The fragmentation function is measured versus z = (E + p(parallel to))(D)* / 2E(jet), where E is the energy of the D* meson and p(parallel to) is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy E-jet. Jets were reconstructed using the k(T) clustering algorithm and required to have transverse energy larger than 9GeV. The D* meson associated with the jet was required to have a transverse momentum larger than 2GeV. The measured function is compared to different fragmentation models incorporated in leading-logarithm Monte Carlo simulations and in a next-to-leading-order QCD calculation. The free parameters in each fragmentation model are fitted to the data. The extracted parameters and the function itself are compared to measurements from e(+)e(-) experiments.

Original language	English
Article number	082
Number of pages	25
Journal	Journal of High Energy Physics
Issue number	4
DOIs	https://doi.org/10.1088/1126-6708/2009/04/082
Publication status	Published - Apr-2009

Keywords

Lepton-Nucleon Scattering
DEEP-INELASTIC SCATTERING
CENTRAL TRACKING DETECTOR
ZEUS BARREL CALORIMETER
HEAVY FLAVOR PRODUCTION
DIJET CROSS-SECTIONS
PARTON DISTRIBUTIONS
PERTURBATION-THEORY
HADRON-COLLISIONS
JET FRAGMENTATION
STRING MODEL

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Measurement of the charm fragmentation function in D photoproduction at HERA
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Chekanov, S., Derrick, M., Magill, S., Musgrave, B., Nicholass, D., Repond, J., Yoshida, R., Mattingly, M. C. K., Antonioli, P., Bari, G., Bellagamba, L., Boscherini, D., Bruni, A., Bruni, G., Cindolo, F., Corradi, M., Iacobucci, G., Margotti, A., Nania, R., ... ZEUS Collaboration (2009). Measurement of the charm fragmentation function in D* photoproduction at HERA. Journal of High Energy Physics, (4), Article 082. https://doi.org/10.1088/1126-6708/2009/04/082

@article{382a457907db4254bd18bb6dd78d7f7c,

title = "Measurement of the charm fragmentation function in D* photoproduction at HERA",

abstract = "The charm fragmentation function has been measured in D* photoproduction with the ZEUS detector at HERA using an integrated luminosity of 120 pb(-1). The fragmentation function is measured versus z = (E + p(parallel to))(D)* / 2E(jet), where E is the energy of the D* meson and p(parallel to) is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy E-jet. Jets were reconstructed using the k(T) clustering algorithm and required to have transverse energy larger than 9GeV. The D* meson associated with the jet was required to have a transverse momentum larger than 2GeV. The measured function is compared to different fragmentation models incorporated in leading-logarithm Monte Carlo simulations and in a next-to-leading-order QCD calculation. The free parameters in each fragmentation model are fitted to the data. The extracted parameters and the function itself are compared to measurements from e(+)e(-) experiments.",

keywords = "Lepton-Nucleon Scattering, DEEP-INELASTIC SCATTERING, CENTRAL TRACKING DETECTOR, ZEUS BARREL CALORIMETER, HEAVY FLAVOR PRODUCTION, DIJET CROSS-SECTIONS, PARTON DISTRIBUTIONS, PERTURBATION-THEORY, HADRON-COLLISIONS, JET FRAGMENTATION, STRING MODEL",

author = "S. Chekanov and M. Derrick and S. Magill and B. Musgrave and D. Nicholass and J. Repond and R. Yoshida and Mattingly, {M. C. K.} and P. Antonioli and G. Bari and L. Bellagamba and D. Boscherini and A. Bruni and G. Bruni and F. Cindolo and M. Corradi and G. Iacobucci and A. Margotti and R. Nania and A. Polini and S. Antonelli and M. Basile and M. Bindi and L. Cifarelli and A. Contin and {De Pasquale}, S. and G. Sartorelli and A. Zichichi and D. Bartsch and I. Brock and H. Hartmann and E. Hilger and Jakob, {H. -P.} and M. Juengst and Nuncio-Quiroz, {A. E.} and U. Samson and V. Schoenberg and R. Shehzadi and M. Wlasenko and Brook, {N. H.} and Heath, {G. P.} and M. Kaur and P. Kaur and I. Singh and M. Capua and S. Fazio and A. Mastroberardino and M. Schioppa and G. Susinno and A. Pellegrino and {ZEUS Collaboration}",

year = "2009",

month = apr,

doi = "10.1088/1126-6708/2009/04/082",

language = "English",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer",

number = "4",

}

Chekanov, S, Derrick, M, Magill, S, Musgrave, B, Nicholass, D, Repond, J, Yoshida, R, Mattingly, MCK, Antonioli, P, Bari, G, Bellagamba, L, Boscherini, D, Bruni, A, Bruni, G, Cindolo, F, Corradi, M, Iacobucci, G, Margotti, A, Nania, R, Polini, A, Antonelli, S, Basile, M, Bindi, M, Cifarelli, L, Contin, A, De Pasquale, S, Sartorelli, G, Zichichi, A, Bartsch, D, Brock, I, Hartmann, H, Hilger, E, Jakob, H-P, Juengst, M, Nuncio-Quiroz, AE, Samson, U, Schoenberg, V, Shehzadi, R, Wlasenko, M, Brook, NH, Heath, GP, Kaur, M, Kaur, P, Singh, I, Capua, M, Fazio, S, Mastroberardino, A, Schioppa, M, Susinno, G, Pellegrino, A & ZEUS Collaboration 2009, 'Measurement of the charm fragmentation function in D* photoproduction at HERA', Journal of High Energy Physics, no. 4, 082. https://doi.org/10.1088/1126-6708/2009/04/082

TY - JOUR

T1 - Measurement of the charm fragmentation function in D* photoproduction at HERA

AU - Chekanov, S.

AU - Derrick, M.

AU - Magill, S.

AU - Musgrave, B.

AU - Nicholass, D.

AU - Repond, J.

AU - Yoshida, R.

AU - Mattingly, M. C. K.

AU - Antonioli, P.

AU - Bari, G.

AU - Bellagamba, L.

AU - Boscherini, D.

AU - Bruni, A.

AU - Bruni, G.

AU - Cindolo, F.

AU - Corradi, M.

AU - Iacobucci, G.

AU - Margotti, A.

AU - Nania, R.

AU - Polini, A.

AU - Antonelli, S.

AU - Basile, M.

AU - Bindi, M.

AU - Cifarelli, L.

AU - Contin, A.

AU - De Pasquale, S.

AU - Sartorelli, G.

AU - Zichichi, A.

AU - Bartsch, D.

AU - Brock, I.

AU - Hartmann, H.

AU - Hilger, E.

AU - Jakob, H. -P.

AU - Juengst, M.

AU - Nuncio-Quiroz, A. E.

AU - Samson, U.

AU - Schoenberg, V.

AU - Shehzadi, R.

AU - Wlasenko, M.

AU - Brook, N. H.

AU - Heath, G. P.

AU - Kaur, M.

AU - Kaur, P.

AU - Singh, I.

AU - Capua, M.

AU - Fazio, S.

AU - Mastroberardino, A.

AU - Schioppa, M.

AU - Susinno, G.

AU - Pellegrino, A.

AU - ZEUS Collaboration

PY - 2009/4

Y1 - 2009/4

N2 - The charm fragmentation function has been measured in D* photoproduction with the ZEUS detector at HERA using an integrated luminosity of 120 pb(-1). The fragmentation function is measured versus z = (E + p(parallel to))(D)* / 2E(jet), where E is the energy of the D* meson and p(parallel to) is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy E-jet. Jets were reconstructed using the k(T) clustering algorithm and required to have transverse energy larger than 9GeV. The D* meson associated with the jet was required to have a transverse momentum larger than 2GeV. The measured function is compared to different fragmentation models incorporated in leading-logarithm Monte Carlo simulations and in a next-to-leading-order QCD calculation. The free parameters in each fragmentation model are fitted to the data. The extracted parameters and the function itself are compared to measurements from e(+)e(-) experiments.

AB - The charm fragmentation function has been measured in D* photoproduction with the ZEUS detector at HERA using an integrated luminosity of 120 pb(-1). The fragmentation function is measured versus z = (E + p(parallel to))(D)* / 2E(jet), where E is the energy of the D* meson and p(parallel to) is the longitudinal momentum of the D* meson relative to the axis of the associated jet of energy E-jet. Jets were reconstructed using the k(T) clustering algorithm and required to have transverse energy larger than 9GeV. The D* meson associated with the jet was required to have a transverse momentum larger than 2GeV. The measured function is compared to different fragmentation models incorporated in leading-logarithm Monte Carlo simulations and in a next-to-leading-order QCD calculation. The free parameters in each fragmentation model are fitted to the data. The extracted parameters and the function itself are compared to measurements from e(+)e(-) experiments.

KW - Lepton-Nucleon Scattering

KW - DEEP-INELASTIC SCATTERING

KW - CENTRAL TRACKING DETECTOR

KW - ZEUS BARREL CALORIMETER

KW - HEAVY FLAVOR PRODUCTION

KW - DIJET CROSS-SECTIONS

KW - PARTON DISTRIBUTIONS

KW - PERTURBATION-THEORY

KW - HADRON-COLLISIONS

KW - JET FRAGMENTATION

KW - STRING MODEL

U2 - 10.1088/1126-6708/2009/04/082

DO - 10.1088/1126-6708/2009/04/082

M3 - Article

SN - 1029-8479

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 082

ER -

Measurement of the charm fragmentation function in D* photoproduction at HERA

Abstract

Keywords

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